Home / 290,997.27-401,543.73-163,670.13

Finding the Fourth Proportional to 290,997.27, 401,543.73 and 163,670.13

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Solution

The fourth proportional to 290,997.27, 401,543.73 and 163,670.13 is: 225,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,997.27 : 401,543.73 = 163,670.13 : x
  2. Step 2: Convert to fraction form
    290,997.27/401,543.73 = 163,670.13/x
  3. Step 3: Cross multiply
    290,997.27x = 401,543.73 × 163,670.13
  4. Step 4: Simplify right side
    290,997.27x = 65,720,714,489.78
  5. Step 5: Solve for x
    x = 65,720,714,489.78/290,997.27
  6. Step 6: Final answer
    x = 225,846.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.